AcuStaf Development C Developer interview questions

Applied through LinkedIn got a call the next day for first round. First round was mostly on resume and behavioral questions like strength ,weakness, conflict situation you came across, one thing that we can learn from you, one thing that you are proud of, one thing that you thunk you need to improve on, how often have you in end ti end development. Second round: Skype interview with HR, hiring manager and Tech person. A debug question on Google doc shared page(Check for malloc and free issues) How can you solve an issue in the system?